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Start Over Author "LAN, Yue" Journal transactions of nonferrous metals society of china
8 results on '"LAN, Yue"'

4. Corrosion resistance of rapidly formed in-situ steam Mg−Al LDH coating on AM50 Mg alloy pretreated with oxalic acid

Author

PAN, Shi-qi, WANG, Jin-meng, ZHANG, Fen, XIE, Hao-feng, CUI, Lan-yue, KANNAN, M. BOBBY, ZOU, Yu-hong, and ZENG, Rong-chang

Abstract

The effect of oxalic acid (OA) etching on the formation mechanism and corrosion performance of in-situ steam Mg−Al layered double hydroxide (LDH) coatings on AM50 Mg alloy was investigated by exposing the intermetallic compounds (β-Mg17Al12and AlMn) on the surface of the alloy. The results demonstrated that the presence of OA led to an increased fraction of intermetallic compounds on the Mg substrate. Mg−Al LDH nucleated and grew around the Al−Mn phase. The best corrosion resistance of LDH coating was obtained with the maximum thickness at a pickling time of 45 s, and the corrosion current density was reduced by three orders of magnitude compared to the substrate. Finally, the formation mechanism of Mg−Al LDH coating on AM50 Mg alloy was proposed.

Published
2024
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7. In vitro corrosion resistance and antibacterial properties of layer-by-layer assembled chitosan/poly-L-glutamic acid coating on AZ31 magnesium alloys

Author

Xiao-Jing Ji, Fen Zhang, Na Lu, Shuo-qi Li, Yu-Hong Zou, Rong-Chang Zeng, and Lan-Yue Cui

Subjects
Materials science, Alloy, chemistry.chemical_element, 02 engineering and technology, engineering.material, 010402 general chemistry, 01 natural sciences, Corrosion, Chitosan, chemistry.chemical_compound, Coating, Materials Chemistry, Magnesium alloy, Magnesium, Layer by layer, Metallurgy, technology, industry, and agriculture, Metals and Alloys, equipment and supplies, 021001 nanoscience & nanotechnology, Geotechnical Engineering and Engineering Geology, Condensed Matter Physics, 0104 chemical sciences, chemistry, engineering, Surface modification, 0210 nano-technology, Nuclear chemistry
Abstract

Surface functionalization of magnesium (Mg) alloys is desired to obtain the surfaces with both improved corrosion resistance and antibacterial property. A corrosion-resistant and antimicrobial coating was prepared on Mg alloy surface by layer-by-layer (LbL) assembly of chitosan (CHI) and poly-L-glutamic acid (PGA) by electrostatic attraction. The functionalized surfaces of the Mg alloys were characterized by field-emission scanning electron microscopy (FE-SEM), Fourier transform infrared (FT-IR) spectroscopy and electrochemical tests. The bactericidal activity of the samples against Staphylococcus aureus was assessed by the zone of plate-counting method. The obtained coating on the Mg alloy substrates exhibits good corrosion resistance and antibacterial performance.

Published
2017

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